Ok first went for a ride two up with my younger brother. We weigh aprox. 310 lbs together. Tried to find the calmest water I could and got 67.3 trimed all the way down. Now I'm seeing a solid 8180 on the tach. So on the next pass I trimed it up just above center and feathered the throtle at 8140 rpm's. With that pass the gps read 71.7. Went to the dock and dropped my brother off with the buzzer going off. Back out I went feathering the throtle again and clicked off a 72.9. Then when starting my second pass my contact came out of my eye so I just turned and headed back to the dock I would GUESS that I still have 10% throtle left when keeping it at 8140 rpm's. Do you guys think I should add another mm of pitch of wait for warmer air and retest? Also I have a "green" sc impeller ordered. Will the wheel cause my engine rpm's to increase or not. If so how much would you guess? Ski felt great but I'm still porpusing. What you guys think I should do?

Green wheel will definitely add rpms over the stock S/C. 100+.. I think you should tweak your prop to get the R's down even though it's still cool weather. You can always take it back off and I personally wouldn't be comforatable running that close to the limiter. BUT, if you're adding the S/C wheel soon you might want to keep the prop the same for now if you feel the rpms are in an alright range. You may want to consider the adjustable nozzles? I sent you a PM.